mapOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? mapOrNull<TResult extends Object?>({
  1. TResult? resultAvailable(
    1. UTempCheckHandleAvailabilityResultResultAvailable value
    )?,
  2. TResult? resultUnavailable(
    1. UTempCheckHandleAvailabilityResultResultUnavailable value
    )?,
  3. TResult? unknown(
    1. UTempCheckHandleAvailabilityResultUnknown value
    )?,
})

A variant of map that fallback to returning null.

It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>({TResult? Function( UTempCheckHandleAvailabilityResultResultAvailable value)?  resultAvailable,TResult? Function( UTempCheckHandleAvailabilityResultResultUnavailable value)?  resultUnavailable,TResult? Function( UTempCheckHandleAvailabilityResultUnknown value)?  unknown,}){
final _that = this;
switch (_that) {
case UTempCheckHandleAvailabilityResultResultAvailable() when resultAvailable != null:
return resultAvailable(_that);case UTempCheckHandleAvailabilityResultResultUnavailable() when resultUnavailable != null:
return resultUnavailable(_that);case UTempCheckHandleAvailabilityResultUnknown() when unknown != null:
return unknown(_that);case _:
  return null;

}
}